Home / Knowledge / Kennametal GOdrill vs Allied Machine Opening Drill
Kennametal GOdrill vs Allied Machine Opening Drill
Kennametal GOdrill and Allied Machine Opening Drill are documented holemaking systems with different product architecture and application priorities. GOdrill is Kennametal's general-purpose solid-carbide drill family for multi-material production. Opening Drill is an Allied Machine adjustable indexable system for enlarging existing holes without a sequence of boring passes.
Side-by-side comparison
| Category | Kennametal GOdrill | Allied Machine Opening Drill |
|---|---|---|
| System architecture | Official B051_CPG records identify 3xD internal-coolant metric drills with straight cylindrical shanks. | Diameter range: 50.80-142.75 mm (2.000-5.620 in). |
| Documented application focus | General-purpose drilling across ISO P, M, K, N, S, and H material groups where the selected item record supports the application. | Enlarging existing holes where eliminating multiple boring passes can reduce cycle time. |
| Technical selection detail | B051F_CPG records use a Whistle Notch shank and are separate catalog configurations. | Four body series divide the diameter range from OP1 through OP4. |
| Primary documented constraint | Several cited official item pages are marked no longer available; historical identifiers must not be represented as current stock. | Opening Drill enlarges a pre-existing hole and is not a substitute for drilling from solid. |
| Manufacturer-guided selection | Capture material number, catalog ID, diameter, depth ratio, shank form, coolant path, grade, and current availability state. | Use Opening Drill when a prepared hole already exists and adjustable large-diameter enlargement is more efficient than repeated boring passes. |
Best fit by application
Kennametal GOdrill
- General-purpose drilling across ISO P, M, K, N, S, and H material groups where the selected item record supports the application.
- Capture material number, catalog ID, diameter, depth ratio, shank form, coolant path, grade, and current availability state.
Allied Machine Opening Drill
- Enlarging existing holes where eliminating multiple boring passes can reduce cycle time.
- Use Opening Drill when a prepared hole already exists and adjustable large-diameter enlargement is more efficient than repeated boring passes.
Selection notes
Use GOdrill when its documented application focus and technical configuration match the operation more closely; use Opening Drill when its documented architecture and constraints provide the better fit.
Compare complete configured assemblies and current manufacturer data rather than treating either family name as one universal item.
Variables to validate
- GOdrill: Several cited official item pages are marked no longer available; historical identifiers must not be represented as current stock.
- Opening Drill: Opening Drill enlarges a pre-existing hole and is not a substitute for drilling from solid.
- Normalize diameter or cutter size, reach, interface, work material, machine conditions, coolant, and acceptance criteria before comparing performance or cost.
Official product references
We work to keep this information reliable, but specifications and availability can change. Verify critical details with the manufacturer through the official resources above.